Add Gitea OTA firmware update, dual-slot partition layout, and Gitea Actions release workflow

components/rc522/examples/basic_i2c/main/basic_i2c.c

@@ -0,0 +1,56 @@
+#include <esp_log.h>
+#include "rc522.h"
+#include "driver/rc522_i2c.h"
+#include "rc522_picc.h"
+
+static const char *TAG = "rc522-basic-i2c-example";
+
+#define RC522_I2C_ADDRESS      (0x28)
+#define RC522_I2C_GPIO_SDA     (18)
+#define RC522_I2C_GPIO_SCL     (21)
+#define RC522_SCANNER_GPIO_RST (-1) // soft-reset
+
+static rc522_i2c_config_t driver_config = { 
+    .bus_config = &(i2c_master_bus_config_t){
+        .i2c_port = I2C_NUM_0,
+        .sda_io_num = RC522_I2C_GPIO_SDA,
+        .scl_io_num = RC522_I2C_GPIO_SCL,
+        .glitch_ignore_cnt = 7,
+        .flags.enable_internal_pullup = true,
+        .clk_source = I2C_CLK_SRC_DEFAULT,
+    },
+    .dev_config = {
+        .dev_addr_length = I2C_ADDR_BIT_LEN_7,
+        .device_address = RC522_I2C_ADDRESS,
+        .scl_speed_hz = 100000,
+    },
+    .rst_io_num = RC522_SCANNER_GPIO_RST,
+};
+
+static rc522_driver_handle_t driver;
+static rc522_handle_t scanner;
+
+static void on_picc_state_changed(void *arg, esp_event_base_t base, int32_t event_id, void *data)
+{
+    rc522_picc_state_changed_event_t *event = (rc522_picc_state_changed_event_t *)data;
+
+    if (event->picc->state != RC522_PICC_STATE_ACTIVE) {
+        return;
+    }
+
+    rc522_picc_print(event->picc);
+}
+
+void app_main()
+{
+    rc522_i2c_create(&driver_config, &driver);
+    rc522_driver_install(driver);
+
+    rc522_config_t scanner_config = {
+        .driver = driver,
+    };
+
+    rc522_create(&scanner_config, &scanner);
+    rc522_register_events(scanner, RC522_EVENT_PICC_STATE_CHANGED, on_picc_state_changed, NULL);
+    rc522_start(scanner);
+}